Sunflower,
I also dunno good places for maternity clothes, only know that suntec city near spring got a number of maternity shops... i was lucky that previously, like to buy abit flare and baby doll tops so now need to worry about bottom only...
u know a japanese shop named "uniqlo", there's 1 in ion and 313 @ somerset, they're selling this bottom, they call it leggings but the material is pants and jeans, it's without zip but elastic band, with our long top that cover the waist it looks exactly like jeans or pants... now with my waistline increase, that suits just nice for me...